Back Plate Screw Set for RC Engines YS Engine YSF5150 FZ53 Replacement  [YSF5150]

Service screws for model engine back plates

This item supplies the replacement fastening hardware used while servicing or rebuilding glow and gas model engines. The screw set is suitable for securing engine back plates and related mounting points during routine inspections and part replacements.

Fitting advice: ensure thread pitch and head size match the back plate, snug screws in small increments to prevent plate distortion, and use a medium threadlocker where vibration is significant. For removal, back out screws evenly to reduce uneven stress on gasket and plate areas.

Role in upkeep: these fasteners are intended for maintenance and repeatable disassembly, not performance enhancement. They keep the back plate secure through run cycles and allow repeatable access to piston and crank components; discard any screws that show thread fatiguing or damage.